Results 11 to 20 of about 680,985 (272)

Combinatorial Hopf Algebras of Simplicial Complexes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
We consider a Hopf algebra of simplicial complexes and provide a cancellation-free formula for its antipode. We then obtain a family of combinatorial Hopf algebras by defining a family of characters on this Hopf algebra.
Carolina Benedetti   +2 more
doaj   +3 more sources

Rota–Baxter (Co)algebra Equation Systems and Rota–Baxter Hopf Algebras [PDF]

open access: goldMathematics, 2022
We introduce and discuss the notions of Rota–Baxter bialgebra equation systems and Rota–Baxter Hopf algebras. Then we construct a lot of examples based on Hopf quasigroups.
Yue Gu, Shuanhong Wang, Tianshui Ma
doaj   +2 more sources

Interacting Hopf Algebras [PDF]

open access: yesJournal of Pure and Applied Algebra, 2014
We introduce the theory IHR of interacting Hopf algebras, parametrised over a principal ideal domain R. The axioms of IHR are derived using Lack's approach to composing PROPs: they feature two Hopf algebra and two Frobenius algebra structures on four ...
F. Bonchi, P. Sobocinski, F. Zanasi
semanticscholar   +8 more sources

Cobraided smash product Hom-Hopf algebras [PDF]

open access: bronze, 2014
Let $(A,\a)$ and $(B,\b)$ be two Hom-Hopf algebras. In this paper, we construct a class of new Hom-Hopf algebras: $R$-smash product $(A\natural_R B,\a\o \b)$.
Tianshui Ma, Haiying Li, Tao Yang
openalex   +3 more sources

A note on the Zariski lemma for Hopf algebras

open access: greenAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2004
The formulation of the lemma of Zariski is given for coactions of a class of Hopf algebras of the additive group on algebras. Known formulations and consequences of the lemma of Zariski for derivations and differentiations are revised.
Utano, R, Restuccia, G
doaj   +3 more sources

Pattern Hopf Algebras. [PDF]

open access: yesAnn Comb, 2022
AbstractIn this paper, we expand on the notion of combinatorial presheaf, first introduced explicitly by Aguiar and Mahajan in 2010 but already present in the literature in some other points of view. We do this by adapting the algebraic framework of species to the study of substructures in combinatorics. Afterwards, we consider functions that count the
Penaguiao R.
europepmc   +5 more sources

Cambrian Hopf Algebras [PDF]

open access: yesAdvances in Mathematics, 2014
Cambrian trees are oriented and labeled trees which fulfill local conditions around each node generalizing the conditions for classical binary search trees.
G. Châtel, Vincent Pilaud
semanticscholar   +4 more sources

On the Structure of Hopf Algebras

open access: yesThe Annals of Mathematics, 1965
induced by the product M x M e M. The structure theorem of Hopf concerning such algebras has been generalized by Borel, Leray, and others. This paper gives a comprehensive treatment of Hopf algebras and some surrounding topics.
J. Milnor, John C. Moore
semanticscholar   +4 more sources

Post-Hopf algebras, relative Rota--Baxter operators and solutions to the Yang--Baxter equation [PDF]

open access: yesJournal of Noncommutative Geometry, 2022
In this paper, first we introduce the notion of a post-Hopf algebra, which gives rise to a post-Lie algebra on the space of primitive elements and there is naturally a post-Hopf algebra structure on the universal enveloping algebra of a post-Lie algebra.
Yunnan Li, Y. Sheng, Rong Tang
semanticscholar   +1 more source

Amplitudes, Hopf algebras and the colour-kinematics duality [PDF]

open access: yesJournal of High Energy Physics, 2022
It was recently proposed that the kinematic algebra featuring in the colour-kinematics duality for scattering amplitudes in heavy-mass effective field theory (HEFT) and Yang-Mills theory is a quasi-shuffle Hopf algebra.
A. Brandhuber   +5 more
semanticscholar   +1 more source

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